| Calvas Canton | |
| Settlement Type: | Canton |
| Image Map1: | Calvas in Loja (Ecuador).svg |
| Map Caption1: | Calvas Canton in Loja Province |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Loja Province |
| Area Total Km2: | 851.2 |
| Population Footnotes: | [1] |
| Population As Of: | 2022 census |
| Population Total: | 26042 |
| Population Density Km2: | auto |
Calvas is a canton of the Province of Loja, Ecuador, located in the south of the province, bordering Paltas and Gonzanamá in the north, Quilanga and Espíndola in the east, Peru in the south, and Sozoranga in the west. It covers 851.2 km2 at an altitude of about 1,932 m. The total population is 26,042, and the capital city of the canton is Cariamanga.
Ethnic groups as of the Ecuadorian census of 2010:[2]